A guide for creating a virtual display on an NVIDIA GPU (tested on RTX 5080, driver 595.58) with HDR, custom resolutions, and 4K@120Hz support for headless Sunshine/Moonlight streaming on Linux.

Works on both HDMI and DisplayPort connectors with no physical display or dummy plug connected.

Running Sunshine headless on Linux with NVIDIA is painful:

Markdown - это облегчённый язык разметки, который преобразует текст в структурированный HTML. Следующее руководство поможет вам разобраться, как использовать Markdown.

# Заголовок первого уровня
## Заголовок второго уровня
### Заголовок третьего уровня
#### Заголовок четвёртого уровня
##### Заголовок пятого уровня

A pattern for building personal knowledge bases using LLMs.

This is an idea file, it is designed to be copy pasted to your own LLM Agent (e.g. OpenAI Codex, Claude Code, OpenCode / Pi, or etc.). Its goal is to communicate the high level idea, but your agent will build out the specifics in collaboration with you.

Most people's experience with LLMs and documents looks like RAG: you upload a collection of files, the LLM retrieves relevant chunks at query time, and generates an answer. This works, but the LLM is rediscovering knowledge from scratch on every question. There's no accumulation. Ask a subtle question that requires synthesizing five documents, and the LLM has to find and piece together the relevant fragments every time. Nothing is built up. NotebookLM, ChatGPT file uploads, and most RAG systems work this way.

This is a sample script for downloading files from Google Drive under no authorization using browser. By using this sample, you can make other users download files from your Google Drive. Even if the other users are not Google users, they can download the files.

#File Magic Numbers

Magic numbers are the first bits of a file which uniquely identify the type of file. This makes programming easier because complicated file structures need not be searched in order to identify the file type.

For example, a jpeg file starts with ffd8 ffe0 0010 4a46 4946 0001 0101 0047 ......JFIF.....G ffd8 shows that it's a JPEG file, and ffe0 identify a JFIF type structure. There is an ascii encoding of "JFIF" which comes after a length code, but that is not necessary in order to identify the file. The first 4 bytes do that uniquely.

This gives an ongoing list of file-type magic numbers.

##Image Files

In the stopped state the STM8L needs just a few µA - but in this state the console can't wake up the device: the USART gets no clock. Only GPIO interrupts and peripherals that are clocked from the LSI or the LSE will work! A possible solution is a pin-change interrupt on RxD for waking the core - and the USART - up. In "Active-Halt" mode RTC and WUT peripherals run on 38kHz LSI or 32.768kHz LSE clock (see here). This means that it's possible to have a background task without keeping the core busy.

One of the challenges ist that STM8L docs doesn't describe the USART behavior if the clock is turned on after the start-bit edge, i.e., if the character that wakes the core from "Active-Halt" can still be received.

Split, resize, rotate, rename, move... all you need is terminator.